<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="js/vue.js"></script>
</head>
<body>
    <div id="app">
        <input type="text" v-color="msg" >
    </div>
    <script>

        Vue.directive('color',{
            bind:function(el,binding){
                //根据指令设置背景色
                console.log(binding.value.color);
                el.style.backgroundColor = binding.value.color;
            }
        })

        var vm = new Vue({
            el:'#app',
            data:{
                msg:{
                    color:'orange'
                }
            },
            methods:{
                handle:function(){

                }
            }
        })
    </script>
</body>
</html>